Stator fixing rod locking mechanism

Abstract

The utility model provides a stator fixing rod locking mechanism which comprises a locking mechanism main table, a bearing seat is installed in the locking mechanism main table, an upper bearing cover and a lower bearing cover are arranged at the upper end and the lower end of the bearing seat respectively, an inner shaft sleeve is arranged in the bearing seat, a fixing rod shaft end plate is fixed above the upper bearing cover, and a fixing rod shaft end plate is fixed above the lower bearing cover. According to the utility model, the stator fixing rod can be effectively fixed and the stability of the stator fixing rod in the working process can be ensured by adopting an inward-retracting clamping mode of the backward-pulling collet chuck. The action of the back-pulling type collet is controlled through rotation of the collet screw, operation is easy and convenient, and automatic control is easy to achieve. The height and the rotation direction of the stator fixing rod can be kept unchanged, the positioning precision of the stator fixing rod is improved, and normal operation and working quality of related equipment can be guaranteed. According to the utility model, the positioning ring and the limiting pin are arranged, so that the position of the stator fixing rod in the height direction and the rotation direction can be accurately limited, and the reliability and the stability of the locking mechanism are further improved.

Description

Technical Field

[0001] This utility model relates to the field of locking mechanisms, and more specifically, to a stator fixing rod locking mechanism. Background Technology

[0002] The Chinese Utility Model Patent Application No. CN219812014U proposes a stator fixing structure for an electric motor, which solves the problem of the inconvenience of fixing motor stators of different specifications. It includes a fixing base on which the motor stator is mounted. A connecting mechanism connects the fixing base and the motor stator, and a locking mechanism is installed on the connecting mechanism. The connecting mechanism includes a placement seat fixed to the side of the fixing base near the motor stator. The motor stator is placed on the placement seat. Two vertical rods are symmetrically fixed to the top of the placement seat, and limit blocks are fixed to the ends of the two vertical rods away from the placement seat. This utility model facilitates the placement of the motor stator on the placement seat through the cooperation between the slot and the insert plate, and also facilitates the cooperation between the vertical rods, the clamping plate, and the spring.

[0003] However, the existing stator fixing rod locking method has some shortcomings and still needs to be improved. In the traditional stator fixing rod locking method, the fixing effect is often not ideal. The traditional stator fixing rod is directly inserted into the inner hole of the upright shaft and then fixed with a set screw. The result of this fixing method is poor concentricity, which makes it impossible to use stators with small slots.

[0004] Traditional locking methods are complex to operate and difficult to automate, which not only increases the difficulty of the operator's work but also reduces work efficiency.

[0005] In terms of controlling the height and rotation direction of the stator fixing rod, existing technologies cannot guarantee the invariance of its height and rotation direction, resulting in low positioning accuracy of the stator fixing rod, which cannot meet the requirements of high-precision work.

[0006] In addition, the existing locking mechanism is also insufficient in terms of reliability and stability. It cannot accurately limit the position of the stator fixing rod in the height and rotation directions, which can easily lead to positional deviations and affect the performance of the equipment.

[0007] Furthermore, traditional locking mechanisms may have inadequate structural design, with insufficient fit between components, resulting in low mechanical strength and durability, failing to meet the demands of long-term use. Simultaneously, their installation and maintenance are relatively cumbersome, increasing operating costs and maintenance difficulty. Therefore, we have made improvements and proposed a stator fixing rod locking mechanism. Utility Model Content

[0008] The purpose of this utility model is to address the problems raised in the existing background technology. To achieve the above-mentioned purpose, this utility model provides the following technical solution: a stator fixing rod locking mechanism, including a locking mechanism main platform, a bearing seat installed inside the locking mechanism main platform, an upper bearing cover and a lower bearing cover respectively provided at the upper and lower ends of the bearing seat, and an inner bushing provided inside the bearing seat. A fixing rod shaft end plate is provided at the lower part of the stator fixing rod, and a positioning ring is provided on the upper plane of the fixing rod shaft end plate.

[0009] As a preferred technical solution of this utility model, a stator fixing rod is embedded inside the positioning ring, and the stator fixing rod can rotate.

[0010] As a preferred technical solution of this utility model, a rotation limiting pin is embedded above the positioning ring.

[0011] As a preferred technical solution of this utility model, a limiting groove is provided at the middle section of the stator fixing rod, and a limiting pin passes through the limiting groove laterally.

[0012] As a preferred technical solution of this utility model, the limiting pin is located on the positioning ring, and the rotation of the stator fixing rod can be restricted by the rotating limiting pin.

[0013] As a preferred technical solution of this utility model, the bottom end of the stator fixing rod is embedded into the bearing seat along the upper bearing cover, and a pull-back collet is installed below the stator fixing rod, with a collet screw fixed between the two clamps of the pull-back collet.

[0014] As a preferred technical solution of this utility model, a screw retaining ring is provided between the pull-back collet and the collet screw, and the two are connected by the screw retaining ring.

[0015] As a preferred technical solution of this utility model, the collet screw passes through the bottom end of the bearing seat along the lower bearing cover, and a round nut is threaded onto the outer surface of the collet screw.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: In the solution of this utility model, the method of retracting the back clamp is adopted, which can effectively fix the stator fixing rod and ensure its stability during operation.

[0017] The operation of the pull-back collet is controlled by rotating the collet screw, which is simple and convenient to operate and easy to automate.

[0018] The stator fixing rod's height and rotation direction can remain unchanged, improving the positioning accuracy of the stator fixing rod and helping to ensure the normal operation and working quality of related equipment.

[0019] The positioning ring and limiting pin of this invention can accurately limit the position of the stator fixing rod in the height and rotation directions, further improving the reliability and stability of the locking mechanism.

[0020] The locking mechanism of this utility model has a reasonable structural design, and the various components cooperate with each other, so that the whole device has high mechanical strength and durability and can meet the needs of long-term use.

[0021] The stator fixing rod locking mechanism of this utility model is relatively easy to install and maintain, reducing the cost of use and the difficulty of maintenance. Attached Figure Description

[0022] Figure 1 This is a cross-sectional structural schematic diagram provided for this utility model;

[0023] Figure 2 This is a structural schematic diagram of the present invention;

[0024] Figure 3 A schematic diagram of the limiting groove structure provided by this utility model;

[0025] Figure 4 A schematic diagram of the rotating limiting pin structure provided by this utility model.

[0026] The image shows:

[0027] 1. Locking mechanism main platform; 2. Bearing seat; 3. Upper bearing cover; 4. Lower bearing cover; 5. Inner bushing; 6. Fixed rod shaft end plate; 7. Positioning ring; 8. Stator fixing rod; 9. Rotary limit pin; 10. Limit groove; 11. Limit pin; 12. Pull-back collet; 13. Collet screw; 14. Screw retaining ring; 15. Round nut. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0029] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely illustrates some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model. It should be noted that, in the absence of conflict, the embodiments and features and technical solutions in the embodiments of this utility model can be combined with each other. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] Example 1: Please refer to Figures 1-4 A stator fixing rod locking mechanism includes a locking mechanism main platform 1, a bearing seat 2 installed inside the locking mechanism main platform 1, an upper bearing cover 3 and a lower bearing cover 4 respectively provided at the upper and lower ends of the bearing seat 2, and an inner bushing 5 provided inside the bearing seat 2. A fixing rod shaft end plate 6 is provided at the lower part of the stator fixing rod 8, and a positioning ring 7 is provided on the upper plane of the fixing rod shaft end plate 6.

[0031] A stator fixing rod 8 is embedded inside the positioning ring 7, and the stator fixing rod 8 can rotate. A rotation limit pin 9 is embedded above the positioning ring 7. A limit groove 10 is provided in the middle section of the stator fixing rod 8, and a limit pin 11 passes through the limit groove 10 laterally.

[0032] The limiting pin is located on the positioning ring 7. By rotating the limiting pin 9 and the limiting pin 11, the rotation of the stator fixing rod 8 can be restricted.

[0033] The bottom end of the stator fixing rod 8 is embedded into the bearing seat 2 along the upper bearing cover 3. A pull-back collet 12 is installed below the stator fixing rod 8, and a collet screw 13 is fixed between the two clamps of the pull-back collet 12.

[0034] A screw retaining ring 14 is provided between the pull-back collet 12 and the collet screw 13, and they are connected by the screw retaining ring 14.

[0035] The collet screw 13 runs along the lower bearing cover 4 through the bottom end of the bearing housing 2, and the outer surface of the collet screw 13 is threaded with a round nut 15.

[0036] Working principle of the stator fixing rod locking mechanism: The pull-back collet 12 is installed in the fixing rod shaft below the stator fixing rod 8. When the collet screw 13 rotates to the right, it drives the pull-back collet 12 to pull down through the screw fixing ring 14.

[0037] The pull-back collet 12 is pressed against the fixing rod shaft, causing the pull-back collet 12 to compress inward. Since the stator fixing rod 8 is inserted into the inner hole of the pull-back collet 12, the pull-back collet 12 retracts and clamps the stator fixing rod 8. The end face of the fixing rod shaft protrudes above the pull-back collet 12, and the positioning ring 7 and the limiting pin 11 are fixed to the stator fixing rod 8.

[0038] The position of the positioning ring 7 is limited by the limiting pin 11, thereby limiting the position of the stator fixing rod 8 in the height direction.

[0039] The rotation limit pin 9 and limit pin 11 embedded above the positioning ring 7 can restrict the rotation of the stator fixing rod 8. The stator fixing rod 8 can maintain its height and rotation direction while being clamped.

[0040] The specific working process of the stator fixing rod locking mechanism: The bottom end of the stator fixing rod 8 is embedded into the bearing seat 2 along the upper bearing cover 3. The pull-back collet 12 is installed below the stator fixing rod 8. The two clamps of the pull-back collet 12 are connected by the collet screw 13 through the screw fixing ring 14.

[0041] The collet screw 13 runs along the lower bearing cover 4 through the bottom end of the bearing housing 2, and its outer surface is threaded with a round nut 15. When it is necessary to lock the stator fixing rod 8, rotate the collet screw 13 to the right.

[0042] The rotation of the collet screw 13 causes the pull-down collet 12 to be pulled down through the screw retaining ring 14.

[0043] The pull-back collet 12 is pressed against the fixed rod shaft, causing the pull-back collet 12 to compress inward.

[0044] Since the stator fixing rod 8 is inserted into the inner hole of the pull-back collet 12, the inner hole of the pull-back collet 12 clamps the stator fixing rod 8. At the same time, the end face of the fixing rod shaft protrudes above the pull-back collet 12, and the positioning ring 7 and the limiting pin 11 are fixed on the stator fixing rod 8.

[0045] The position of the positioning ring 7 is limited by the limiting pin 11, thereby limiting the position of the stator fixing rod 8 in the height direction. The rotation limiting pin 9 embedded above the positioning ring 7 and the limiting pin 11 work together to restrict the rotation of the stator fixing rod 8, so that the stator fixing rod 8 remains unchanged in height and direction of rotation while being clamped.

[0046] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A stator fixing rod locking mechanism, comprising a locking mechanism main platform (1) and a stator fixing rod (8), wherein a bearing seat (2) is installed inside the locking mechanism main platform (1), characterized in that, The bearing housing (2) is provided with an upper bearing cover (3) and a lower bearing cover (4) at its upper and lower ends, respectively. An inner bushing (5) is provided inside the bearing housing (2). A fixing rod end plate (6) is provided at the lower part of the stator fixing rod (8). A positioning ring (7) is provided on the upper plane of the fixing rod end plate (6).

2. The stator fixing rod locking mechanism according to claim 1, characterized in that, The positioning ring (7) has a stator fixing rod (8) embedded inside, and the stator fixing rod (8) can rotate.

3. The stator fixing rod locking mechanism according to claim 2, characterized in that, A rotating limiting pin (9) is embedded above the positioning ring (7).

4. A stator fixing rod locking mechanism according to claim 3, characterized in that, A limiting groove (10) is provided in the middle section of the stator fixing rod (8), and a limiting pin (11) passes through the limiting groove (10) laterally.

5. A stator fixing rod locking mechanism according to claim 4, characterized in that, The limiting pin is located on the positioning ring (7), and the rotation of the stator fixing rod (8) can be restricted by the rotating limiting pin (9) and the limiting pin (11).

6. A stator fixing rod locking mechanism according to claim 5, characterized in that, The bottom end of the stator fixing rod (8) is embedded into the bearing seat (2) along the upper bearing cover (3). A pull-back collet (12) is installed below the stator fixing rod (8), and a collet screw (13) is fixed between the two clamps of the pull-back collet (12).

7. A stator fixing rod locking mechanism according to claim 6, characterized in that, A screw retaining ring (14) is provided between the pull-back collet (12) and the collet screw (13), and they are connected by the screw retaining ring (14).

8. A stator fixing rod locking mechanism according to claim 7, characterized in that, The collet screw (13) passes through the bottom end of the bearing seat (2) along the lower bearing cover (4), and a round nut (15) is threaded onto the outer surface of the collet screw (13).

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